My nouveau driver is disabled by the ArchLinux packages:
[tom] [~]% cat /usr/lib/modprobe.d/nvidia-ck.conf
[tom] [~]% cat /usr/lib/modprobe.d/nvidia.conf
I’m using no DE to speak of. I’m running X more or less sessionless.
I’m using no display manager. I start X from command line.
I’m using Compiz as a window manager, and emerald as decorator.
I’m kind of forced by my WM to use compositing for X to even start at all.
When I switch to Metacity (2.34) instead of Compiz (without disabling compositing in X), I can not reproduce the problem. Even on KWin (4.11.7) with effects enabled, which do use compositing as far as I’m aware, I have not seen the issue.
I currently do not have time to try out different versions, but when I do, I’ll post results here. My suspicions are that for me, the problem occurred in the same versions as for overkll.